Shaving implement



Feb- 27, 1945- l. JEPsoN ET A1. 2,370,544

SHAVING IMPLEMENT Filed June 16, 1941 2 Sheets-Sheet l ma MM@ WL uw e. LE/MMM wwim Feb' 27 19.45 l. JEPsoN ET Al. 2,370,544

SHAVING IMPLEMEN'I.I

Filed June 16 1941 2 Sheets-fSheet 2 Z Vw Q7/ Patented Feb. 27, 1945 SHAVING IMPLEMENT Ivar Jepson andTlieo C. Whiting, Chicago. Ill., assgnors to Chicago Flexible Shaft Company, Chicago, Ill., a corporation of Illinois Application June 16, 1941, SerialNo. 398,21 g

(c1. sot-34) i f' 1s clanes.

This invention relates to shaving implements of the kind known as dry shavers. It also relates in certain respects to the clipping. of hair either in combination with a close shaving means or independently thereof. Y y One of" the objects of ourinvention is to pro vide an improved `shaving implement of the type having a comb and vcutter adapted for close shaving anda separate comband cutter in corelation therewith adapted for cutting long hairs.

Another object of our invention is to provide an improvedcutter driving mechanism whereby Another objecty of our inventionA consists in a novelorganization of parts in a dry shaver of the type described in which the close shaving cutter is oscillated transversely'of the cutter head and the longhair-cutter is reciprocated lengthwise -of the cutter head. f

a Another object of our invention rconsists in organizing the cutter partsand the cutter driving parts in a shaver of thev type described 'sof that they will be compactly arranged in coacting relation and the drive-transmitting parts will oper# ate with a comparativelysmall amount ofiriction and Will be capable of high speed'operation for comparatively long periods. i w

Another object is to provide, an instrument for cutting hair, characterized by a comb member having a row of teeth andz a movable cutter in coaction with the comb teeth,.including' improved shape characteristics in the comb member for the purpose of definitely pickingiup loose 'or long hairs yand guiding them into'thecutting area, whereby to facilitate the clipping or shearing of hair. Y

invention becomes better'understoo'd by refer-1 ence to the following description when considered in connection with the accompanying drawe ings, inwhich: f i; l Figure 1 is a cross Ysection lengthwise through a cutterhead end of a VVshaving implement embodying our invention, una scale approximately fouijtimes actual size; v y t constitutes the han- Fig.l 2 is a fragmentary side elevation of the implement lookin'gat" the left hand sideof Fig. 1; Fig. 3 is a plan section through the head casing taken substantially on the section" line 3-3 of Fig. 1,'with the yhead casing removedy from the implement and showing drive member in ful/1 topv view?!y .l f

Fig. 41s a fragmentary top view of the implementron a scale` approximately twice full size;A

Fig. 5`is a'. cross section taken substantially on the section line 5--5 of Fig-4;

Fig.n 6 is la r:fragmentary vsection lengthwise through the close shaving comb, together with a side elevation of the cutter; these parts being removed from the implement; f

Fig. 7 is an enlarged detail section ofthe clipper comb vandvcutter on the section'line 'lf-1 of Fig. 4; and* Fig. 8 is a perspective view of the clipper comb, its cutter, and the cutter driving slide in spaced relation.

' In the embodiment of our' invention here shown forvpurpose of` illustration we have provided separate comb'and cuttterl assemblies for close shavingv and long hair cutting respectively, arranged` in cooperative relation and operated ,from a sin# glerotary drive member. Thisv embodiment has the advantagethat the comb and cutter set for each assembly is individually replaceable and the rcutting elements; of each set are independently mounted and maintained in the desired coaction without dependence on the `other set. The respective combandcutter setsare however, ar-

ranged in juxtaposition and in cooperative'rela-y tion for clippingand shaving. Our invention, however, in its broader aspect, insofar as the drive mechanism is concerned, contemplates the use of both .combs on a single comb unit such,v for ex'- ample, as disclosed in the application of Ivar Jepson, Serial No. 311,969, led January ,2,` 1940, for Shaving implement. Also, in its broader phase our invention is not limited to the use of a transversely oscillating cutterrfor close shaving but contemplates any preferred or desired arrangement of the two types of combs and cutters. It should be noted, however, that a particular problem is presented in the objective of a satisfactory drive mechanism-fora reciprocating type cutter for long hair cutting when kcombined with an oscillating typecutter for close shaving, where it is desired to` drive both cutters from a single rotary drive membersuch as from one end of an armature shaft as used inelectric dry` Shavers.

. This problem is complicated by the desire to keep the ystructure compact and within lcertain size limits, also by the problem of providing electrical insulation between the armature shaft and the .driven parts, the problems of friction, wear and lubrication, particularly in view of the comparatively high'speed at which the `parts operate, the

avoidance oi service troubles by reason of the tendency ofK usersto `disregard directionsffor oiling and` cleaningh Our' invention..` therefo'racon.- templates the provision' of a single rotary drive member provided with two eccentric means. one.

for transmitting drive to the close shaving cutter and the other te the long hair cuttenfI-n the desirefor minimum load on the motor, and the v c this embodiment we have provided a drive memembodiment shown the eccentric meansare ar-f I ranged one at the terminal end of the drive. member for oscillating the close shaving cutter' trans-` y l verselyofq the shaving head and the other eccentric means'at an intermediate Vpositicnfcr recip# rocating the long hair cutter lengthwise of the t.

head.l i

Referring now tothe drawings,v Il indicates-a main housing (only a portionofwhich is shown);y

which constitutesv a handle, as. is `well Ylrnowrzt'in this art, and in thepresent embodiment:alsoconstitutes the housing forV anelectric motorwhich In this form :the armature drives the cutters.

shaft of the motor has an end I2 journalled in abearing I3 supported in themainhousing. On the rfiat end I4 of the main housinggis mounted a. head casingV designated generally by lI5 which may be in theformf-ofr a die casting, oraotherzwise formed, to provide supportior the comb-and cutter parts, as will be presently described. In this form the headcasing has a base'portion I6 which seats on the surface'l4 and isheid` thereon by bolts |11, vertical side walls-I8 and. I9', a transverse partition wall 2'I, andv vertical endwalls22 and 23. The head casing is further shaped to provide abody portion 241 integral with'the base portion I6 and the side wall I!!` as shown in Fig;

5 and extending from end to end of the casing head except for a cut-away `25 for therotary drivingmember best shown inFigg3, this body portion being machined to providea bearing slot 26 for a cutter driving slide which will be pres,-` enti-y` described.

`In this embodiment a replaceablev comby unit designated-generally by 21 of' the. general type disclosed in Patent No. 2,234,891, granted March Il, 1941, is'supported on the end walls 22-123, this unit having ta comparatively thin skin-engaging comb plate 28provided with small hair,- receiving openings. with-cutting edges` at the in ner end thereof, -these openings. being 'arranged in a shaving areasubstantially from end to lend of the comb; The thinness of this combplate e andthe sizeand shapeof vthe openingsmaki-ng it adapted for close shaving, as such term and function is knownin this art. This comb unit is normally held in position by engaging at one side beneath a retaining plate 29 and* being clamped at opposite side against the small 'sup'- porting lugs onithey walls 22-23. This clamping I is here effected byk means of a presser plate' 3| `which iepivotally" supported at 32 on the head casing I5 and yieldingly" urged into the clamping position by va springv 33 similar tcthe disclosure in said Patent No. 2,234,891. The retaining plate 29- is in vthis'instance held in position -byhaving an `inwardly turned7 end 34: fitting in a retaining slot in the wal-l I'8 of theheadcasing as shown inFig. 5. A cutterbladel is adaptedto ybe rapidly oscillated'i'n coaction with the inner side of the comb plate'28 in a manner known in this art, the cutter being carried by aholder 36 hav-i bercomprising axially spaced members 43 and 44-joined=by a cylindrical eccentric 45, the memy ber 43 carrying the eccentric drive vpin or crank 4IA and the member 44 having extensions 46 fixed in an insulationcoupling 41 whichin turn is fixed 'to ametal khub 48 threadingly engaged on the vshaft end I2.

In the preferred embodiment the parts 4.6 and 48are metal inserts in a molded coupling 41 such as Bakelite-or any suitable electrical'insulation material." f The, comb and v'cutterxassembly adapted for long haircutting is in this4 embodimentmounted in coaction with the Vchose shaving'comb `and cutter soI as to be separately removable and: replaceable, although as; above stated our invention in its broader conception contemplates alsothe association ofithistypexof clippercomb directly withA the closey shaving comb either as a com.

ponent part ofV the closet shaving' comb'unit as ,disclosed in said Patent No. 2,234,891, or as a re.-

vembodimentthe comb member is formed from hat sheet steel to provide a mainbody yportion 52 which fits kflat against the outer face of the side wall' IB and covers .substantially the entire wall, and rto also provide `alaterally turned por# tion 53` in which the teeth 5I are cut. In this instance the comb plate has locating lugs 54 iit' ting inv a slot 55 in the head casi-ng for locating the comb plate.` vertically. Screws 5B passing through `openings 51 in the combv portion 52 and threaded] into the head casing clamp the comb plate fixedly in Working position. The ycutter blade for-this comb,y designatedgenerally by 58, is also. formedI from a flat sheetof steel to provide a main body portion 59 and a laterally turned portion 6I in which the teethv 62 are cut.` This cutter blade is constantly urged into coaction with the stationary comb by means ci.y a spring 63', best shown in Figs. 1 and 2, which has resilient arms 64 pressed upwardly against'the bottom edge of this cutter blade near lthe opposite ends thereof` and an intermediate portion 65 seated and retained against a hook-shaped lug 6 6 formed from the upright. portion 61 of a slide member designated generally by 68. This slide 68 ts in the bearing 'slotES` and maybe substantially coextensive with the length of the head casing, as shownin vFig.22. In this embodiment of the slidethe upright portion 81 is integral -with a. horizontal portion B9 which is covered bearing faces formed by the slctZIiin the head casing are out away at '13, as yshown in Fig. 2, for clearance 'of the rivets. The body' portion 1|- of the slide is shaped at -14 to receive the eccentric 45, whereby rotating motion of the drive member 42 is. translated to reciprocate the slide 68. The upstanding portion' 61 of this slide has a. driving lug 15 extending through a slot 16 in the comb plate portion 52 and fitting in an opening 11 in the cutter blade' 58, whereby this cutter is reciprocated by` the slide. The upright portion61 of the slide is disposed in a recessed area 18, Fig. 2, in the side wall- I8 of the head casing and the comb plate serves to hold the slide 68 and also the retaining plate 20 yin position. I f

Viewing Fig. 1, itwill be noted that the face of the long hair cutting comb is in a plane substantially tangential to-the face of the. close shaving comb 28 and that this plane is disposed substantially below the highest point of the comb 2 8 on the longitudinal centerline Illqf the shaving implement, this plane being in substantial angu# lar relation to said centerline so thatr ther comb 49 is set back from thehigh point of the comb y 28. This is of particular advantage in certainl shaving operations as, for example, when shaving the upper lip, for the reason that it permits-.ittici close shaving comb to be used to the highest point of the lip without interference on the other comb. 4At the same time-this relationship o'f-the two combs permits of their simultaneous use with the stroke in the other direction wherein", the

comb 49 functions for cutting long hairs andthe," comb 48 simultaneously functions for close shav-f. ing. In these operations it will be manifest.that; the single rotating driving member transmits;

oscillating motion to the cutter 35 transverselyl of; the head and reciprocating motionto the cutter 58 lengthwise oi the head, through the 'interme'f diary ofthe eccentric .means 4| and the eccentric means 45, respectively. It will also be noted that the. cutter 58 is heldunder tension in shearing coaction with the comb 49 by means of the spring 63 which is carried :by the slide which imparts the reciprocating motion, this coaction being further obtained by the wedging actions/bev tween theangular faces' of the cutter an he complementa] faces of the comb. f

A removable housing 19l'is providedA to enclose.

the ends of the shaving head and the side 'oppo`A site from the presser plate 3|. This housing comprises end walls 8| and 82 joined by a-side f' wall 83, the end walls being shaped to conform with the contour of thecomb structure and ther side wall 83 terminating at its upper end 'short of the clipper comb and cutter so as to provide in effect an opening 84 to exposev this combifor section 19 may be slid horizontally to thei'leit,r

viewing Fig. 1, to remove it from the'implenient, the casing having slidingengagement alongl its end walls with the ends ofthe headcasing. {Suitable means is provided for releasably retaining this housing vsection in the closed position,l inA this instance comprising a pair of spring .blades '88 bolted to the casing and each shaped tol'snap over a retaininglugy 89 fixed to the vunderside of,r

the head casing. i-

Referring,to Fig.7A it will be noted thatvthe portion 53 of the clipper comb-is-undercutat 8l, this being at the inner end or bottom of the slot which defines the side walls,y of adjoining teeth 5 l. This undercut is at an acuteanglewith respect to the outer face of theseteeth, that is',

the top face in the position of the comb shownv in Fig. 7, so as to provide individual sharp edges and inclined faces leading inwardly to the cut.l ting plane. These sharp edges serveto pick up loose or long hairs by motion of the'clipper over the skin. Such edgesand undercutj faces also servetofguide the hairs to the cutting edges and thereby facilitate the cutting of hairs which are otherwise diiilcultto-engage in clipping devices,

particularly in devices usedfor shaving'. In this instance the Aundercut is made by a milling cutfv ter the outer diameter of which isindicated by dotted lines in Fig. '7.v This featureof the invention is not, however, limited to use with a close shaving comb and cutter as yherfein shown, but it is adaptedjfor independentuse in hairv clippers. f f

The term'feccentric means iSv-used in the claims to mean any motion transmitting means driven shaft into reciprocatory motion as applied to the cutter slide 68, and the crank 4i which translates rotary motion from said shaft into oscillatorymotion as applied to the cutter carrier 36.

.While we have shown a particular embodiment of` our invention, it will be understood that 4we do not wish to be limited thereto .since many modifications may bev made, and'we therefore contemplate by the appended claims to cover any such ymodifications as fall within nthe true spirit andscopeof our' invention. i

Wea'claim: ,f

1. A shaving implement having a comb structure provided with small hair-receiving openings and a cutter in coaction therewithxadapted for close shaving, a body structure supporting said comb and cutter, power drive mechanism on the body structure for operating said: cutter, 'a comparatively flat comb body supported on one side ofsaid body structure and having a row of clipper teeth extending along one side of the first mentioned comb, a cutter reciprocable on the outerfside of said comb body and-having cutter teeth in coaction with said clipper teeth, said drive mechanism including an eccentric drive member, and a slide member mounted for ree ciprocation on the body structure adapted to be reciprocated by said eccentric drivemember andhaving ra drive transmitting part f extending throughthe body part. of thesecond Amentioned comb member into driving engagement with the second mentioned cutter. i v

2. A shaving implement as set;V forth in claim l, including resilient means carriedzby the slide member and coacting with they second 'mentioned cutter for urging it into coaction with the clipper teeth of the second mentioned comb. g 31A shaving implement having.:v an arcuate comb adapted for close shaving "and a cutter in coaction therewith, a comb extending along one.

side of the rst mentioned comb,A having a vrow of- `the kvsecond 'mentioned comb', and mechanism `rior simultaneously operating the cutters includsecondfmentioned eccentric means .arranged to;

rotate about'ari axis extending longitudinally of theshavingimplement, the drive transmitting connection foi-'the second mentioned cutter including a jslideA member 'recipro'cable in a 'direce tion at rightangles to saidaxis of rotation, and a'springmounted 'o'n and moving with the slide and'arrangedftourge the second mentioned' cut= ter into' coaction with the l Send'menti'oned combi." l f 4. Ashaving implement having a head casing, a close shaving comb removably mounted on the head casing, a cutter coacting with said comb, a .clipper-comb of ilat material providing a main bodyportion which nts againstan outer side Wall of "thehead casing and has a laterally turned upper end provided with'clipper teeth' at its outer edge, acutter blade slideable oni the outer sideo'f said comb plate and having clip-per teeth adapted forlcoaction with the clipper teeth of said plate,l `a slide-meinber rhavingi a flat'portion slld'eable lengthwise in a bearingislot in the side vvalliportion of the` head leasing, the slide ex,h tending'through theL outer end of said-slot and having an upturned portion provided with means coasting with the clipper cutter blade for reciprocating the same, and lmeans' coacting between'the slide and the clipper ycutter blade for yieldinglyurging the'v latter into ccaction with the clipper comb. Y f

f5: A `shaving implement as set forth in claim 4,2 in.whichA the upturn'ed portion of the'slide is disposed at the inne/r side4 of the clipper comb plate and its means for reciprocating the 'clipper cutter blade extends through-an opening in the clipper comb plate.

comizi,` the latter comb having an outwardlyprojecting row oi" clipper teeth, cutting meansfco'- 'aci-,ingI with said combs andvcperated by"said driving" means, and a `housing member" having end walls joined by a side wall'shaped to 4enclose the 4opposite ends 'of lthe head casing land the parts assembled thereon and'also to enclose the clipper side of the headl'casing 'except for an opening adjacent to .the clipperfconib andfcutter inwliieh opening the clipper comb and cutter 'are disposed, ythe upper end of said'side Wall be- 'mg normally ldisposed within the outer end-of the projecting clipper comb, the housing member being mounted sov as 'to beslideable transversely of the major axis oft-he shaver into and out of an 'operative position in which'its' endand side walls-'are .disposed as described, land vmeans re'-4 leasably retaining the housing memberinsaid operative position. l v

l0. A'shaving implement having a head casing, a clipper type` cutter' comprising a substantially flatfmain body' portionl 'adapted to be" seated against one'side of the head 'casing fand having at one enda laterally turned portion provided at its outer endwith cutter teeth, a-'cutterblade mounted to slide against' the vouter'face of the comb plate body portion andhaving cutter teeth coacting with the clipper teeth of said l'body por'- tion, a slide member-2 mounted to reciprocate in. the head casing and having a lateral portion ex`d tending through an opening in the main body portion of the clipper' plate, and resilientmeans actingbetween the cutter'and the extending portion ofthe slide member for yieldinglyl urging the cutter intol coaction `with the comb teeth, and

, means for reciprocating the slide member.

-1 1. .A- shaving implementhaving a coacting comb and 'cutter of .a 'type adapted for close `6. fA shaving implementy as set forth in claim 4', f

infwhichthe means forl yieldingly urging the clipper cutter blade against the clipper comb in'- cludes a slide part extendingthrough an opening irithefclipper' comb'plate and a springielement acting-betwecnsaid slide part and the clipper cutterblade to urge the latter upwardly ,into co-` action withthe clipper comb. r ,'71- A shaving implement as set forth claim 4; includlngan eccentric drive means for operating the clipper cutter blade, in which that'portion o! the slide, member whichiits in the bearing slot has -bearing vfaces of self-lubricating and `wear'- resisting material, and in which said slide portion' issrecessed at itsside opposite from its up-v `is reciprocated by rotation of said eccentric #285A shaving-implement as set forth in claim 4,'

shaving, a coacting comb and Acutter of a type adapted for long-hair cutting? a supporting structure therefor, a slide member mounted for reciprocation on .the ysupporting .structure and connected with' the ysecond mentioned cutter'for imparting reciprocatory motion thereto, a rotary drivemember composed 'of' axially rspaced members joined by an eccentricportiomsaid slide shaped for coaction/With'said Veccentric portion and adapted to be-reciprocated thereby upon rotation of the drive member, and eccentric means on one of the axially spaced rmembers connected with the first mentioned cutter'for imparting cutting movementv thereto-upon rctationof the drive in which the 'main bodyofthe clipper comb plate and the m'ain'body ofthe clipper cutter `blade are provided with registering openings communi'- .catingvvith theA inner `side of the close shaving comb for the discharge of cut hair particles.

'9; A shaving yimplement having a main housingprovidedwith driving means, a head casing mounted von one end ofthev main housingand provided vfithfa` close shaving comb andl aclipper member. f

12,.; In a shaving implement characterized bya main motor housing, a head casing removably-attached to the main housing'at one-end thereof, a closey shaving comb and a clipper comb mounted on the` outer end of the head casing, cutting means coacting with said combs, mechanism driven .by the motor foroperating thecutting means. irrcluding means mounted on thehead casing, a presser plate at. one sideof the head casing, the closeshavingfcomb,constituting a unit -remov ableV from thehead casing actingto'norma-lly loci; the close shaving comb in operative relation and beingl movableto a comb, releasing position, the combination 'with they described structure cfa housing .having end wallsshaped to enclose the opposite .ends ofthe head casing'and a side wall shaped toy enclose the'isidel of the headcasing op-f posite from the` presser plate-, said housing being shaped to' providean opening exposing fthe close shaving comb and the clipperoomb for usean'd head casing to and. from an operativepo'sltion coaxial with said hub member and joined by a for operating the cutters, part of which mechanism is within the head casing, a presser plate at one side of the head casing coacting with the close shaving comb to lock it in operative position and being operable to release said comb,

the improvement in which the head casing is provided with a partition vdividing the casing into an upper compartment in which the cutter for the close shaving comb operates and a lower compartment in which a part of said cutter operating mechanism operates, a housing having end walls shaped to enclose the opposite ends of the head casing and la side wall shaped to enclose the side of the head casing opposite from the presser plate, said housing being further shaped to provide an opening exposing the clipper comb for use and being mounted for movement with respect to the head casing to and from an operative position thereon, means releasably retaining the housing in said operative position, and the head casing at its side opposite from the presser plate being provided with an opening connecting the upper compartment in the head casing with the opening provided by the side wall of the movable housing.

14. A shaving implement as set forth in claim 13, in which the clipper comb comprises a plate having a main body portion covering substantially the entire side of the head casing at the side opposite from the presser plate and having at its upper end a laterally turned portion terminating in clipper teeth, the main body portion of the clipper plate being disposed intermediate the head casing and the adjacent side wall oi' the movable housing, and said main body portion of the clipper plate having an opening providing communication between said opening to the upper compartment in the head casing and said opening provided by the movable housing.

15. In a shaving implement characterized by a close shaving comb and a4 clipper comb and a separate cutter coacting with each comb,y together with power driven means for simultaneously operating said cutters including a rotary drive member having an eccentric means connected' for operating the close shaving comb cutter and a second eccentric means connected for operating the clipper comb cutter, the improvement in which `the rotary drive member comprises a metal hub member having a central bore for connection to a power drive member, a metal member having axially spaced annular members cylindrical member eccentric with respect to said hub member, the annular member adjacent to the hub member having extensions in overlapping relation to the hub member, and a body of insulation material into which said hub and said extensions are inserted so as to provide an electrical insulation coupling between said metal members, the rst mentioned eccentric means being mounted on the upper annular member and the second mentioned eccentric means being the cylindrical eccentric member.

16. In a'shaving implement characterized by' a close shaving comb and a clipper comb and a separate cutter coacting with each comb, said combs being arranged in close relation one with respect to the other at the outer end of a shaving head, a rotary 'drive member at the inner end of said shaving head, and a separate operative connection between the rotary drive member and each of the cutters, the improvement in which the drive for the clipper comb cutter comprises a cylindrical member on the drive member eccentric with respect to the axis .of rotation of said` drive member, a slide member of electrical insulation material mounted for reciprocation on the shaver head in a plane normal to said axis of the rotary drive member and coacting with said eccentric member so as to be reciprocated by rotation of the drive member, and meansoperating between said insulation slide member and the clipper comb cutter for reciprocating the latter.

17. A shaving implement as set forth in claim 16, including resilient means carried by the means for reciprocating the clipper comb cutter and serving to yieldingly urge the teeth of the clipper comb cutter into engagement with the teeth of the clipper comb.

18. In a shaving implement characterized by a head casing equipped at its outer end with a close shaving arcuate comb and a clipper comb extending along one of the longitudinal edges of the close shaving comb, an oscillating 'cutter coacting with Vthe close shaving comb, a reciproeating cutter coacting with the clipper comb, and a presser plate releasably engaging the close shaving comb at the side thereof opposite from the clipper comb for holding the close shaving comb in operative position, the improvement consisting in means iixed with respect to the head casing arranged to overreach the close shaving comb at the side thereof adjacent to the clipper comb, and means on the close shaver comb coacting with said iixed means for locking the close shaving comb in operative position on the head casing when the presser plate is in the operative clamping position and permitting removal of the close shaving comb from said operative position when the presser plate is withdrawn.

IvAR JEPSON. THEO C. WHITING. 

